Unforgettable First Kiss
S1:E23
2018
IMDb
Si-woo asks Do Ha-na to be his girlfriend but Do Ha-na tells him it'd be better if he has asked her out the day tomorrow since it's Proposal Day. So Si-woo asks her to promise him that she'd say yes if he wins at the final basketball match tomorrow. At the final match, Do Ha-na witnesses a girl named Lee Jeong-min.